On Thu, Oct 13, 2022 at 12:29 PM Henry Rich <henryhr...@gmail.com> wrote: > I don't understand the question: what are you trying to compute? Doesn't > gmp support division?
Sure, and mpq_get_d() documented at https://gmplib.org/manual/Rational-Conversions fails J's accuracy tests, with off-by-least-significant-bit errors. I've got most of those worked out, but I still fail on this test. > Knuth has code for division IIRC. It's not just division, it's the stability of the algorithm when discarding precision. Probably I just need to find a relevant reference on numerical analysis. Thanks, -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
